485 Communication Address; Communication Baud Rate Selections; Modbus Data Format; Communication Ratio Setting - Veichi AC300 Series Technical Manual

AC300 Series Vector Control Inverter Manual
LED "000" digit: reserved
LED "0000" digit: reserved
Note: When the inverter is used as the host network, all network slaves must also be Flextronics inverters to be
properly networked.Broadcast data is sent over a custom free protocol.
F13.01

485 communication address

Setting range: 1-247
It set communication address while inverter is Modbus communication slave machine. If inverter is main machine,
this parameter is no meaning. 0 is broadcast address.
F13.02

Communication baud rate selections

Setting range: 0000-0065
LED "0" digit: Modbus communication baud rate: set the communication baud rate
0: 1200 bps
1: 2400 bps
2: 4800 bps
3: 9600 bps
4: 19200 bps
5: 38400 bps
6: 57600 bps
LED "00" digit: LED ten: Can (VEICHI Can)
0: 20 kbps
1: 50 kbps
2: 100kbps
3: 125kbps
4: 250kbps
5: 500kbps
6: 1Mbps
LED "000" digit:Reserved
LED "000" digit:Reserved
F13.03

Modbus data format

Setting range: 0-5
Set the data format when Modbus communication. If the data format is different, communication will not be possible.
0: (N, 8, 1) no checkout, Data digit: 8, Stop digit: 1
1: (E, 8, 1) even checkout, Data digit: 8, Stop digit: 1
2: (O, 8, 1) odd checkout, Data digit: 8, Stop digit: 1
3: (N,8,2) no checkout,Data digit:8, Stop digit:2
4: (E,8,2) even checkout,Data digit:8, Stop digit:2
5: (O,8,2) odd checkout,Data digit:8, Stop digit:2
Function Parameter Specifications
Factory set: 1
Factory set: 0003
Factory set: 0
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AC300 Series Vector Control Inverter Manual
F13.04

Communication ratio setting

Setting range: 0.00-5.00
The data in communication address 0x2000 or 0x3000of upper machine multiply this parameter is communication
giving of this machine. Upper machine communication order can be modified pro rate.
F13.05 Modbus communication answer delay
It defines the intermediate interval between sending data to the upper machine after the data is accepted. While
inverter is Modbus communication slave machine,While delay time is shorter than system dealing time, real delay time
is same as system dealing time. While delay time is longer than system dealing time, it has to delay while system
dealing finished. It does not send data to upper machine until delay time arrive.
This parameter defines the frequency converter as the Modbus communication master station. The delay is the
transmission interval of the host, and the internal limit is 2.5 characters.
F13.06 Modbus communication overtime fault time
F13.07 Modbus communication fault act mode selections
Modbus communication overtime fault time: If the interval between one communication and next communication is
over communication overtime, it is considered as communication break fault. [F13.07] decides the act mode.
LED "0" digit: Modbus communication fault act mode selections
0: No checkout overtime fault No fault checkout.Inverter runs according the last communication command.
1:Alarm and stop freely If it has not received next frame order or the communication order while the latest
communication giving order is over [F13.06] time setting, inverter alarms fault E.CE and stops.
2: Alarm, go on running While inverter running command is given by communication,if it has not received the new
communication order while the latest communication giving order is over [F13.06] time setting, inverter alarms 10.074
and runs according the last order.
3: Forced stop Frequency inverter stop while communication giving order is over than[F13.06] setting time and does
not receive next frame order or other communication order.
LED "00" digit: Reserved
F13.08 Modbus transmission response
The parameter chooses whether to respond when the upper machine sends a write command to the drive. If the
upper computer needs the reply from the drive, the drive will occupy sharing communication bus; when doing
communications control, the upper computer need to retain enough time to reply. If the upper computer does not need a
reply message but only send commands to the drive, you can choose no respond to write operation to improve the
utilization efficiency of the communication bus. This parameter is valid only for write operation, invalid for read
operation.
0: write operation with response
Function Parameter Specifications
Factory set: 1.00
Setting range: 0.1-100.0s Factory set: 1.0s
Setting range: 0.1-100.0s Factory set: 1.0s
Setting range: 0-3 Factory set: 1
Setting range:0-1 Factory set: 0
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